When asked why Motorola would not be partnering up with Microsoft to release a series of Windows Phone 7 devices, they had this to say…

Motorola was also worried about using an OS like Windows Phone that is not open source. “We would like an opportunity to create unique value and we don’t feel we could with a closed platform,” she said. Going with Windows Phone would create a scenario where the only value Motorola could offer was commoditized hardware, she said.